CN106968933A - The pump speed control method realized using the star-wheel variable speed energy saving system of closed-loop control water pump - Google Patents
The pump speed control method realized using the star-wheel variable speed energy saving system of closed-loop control water pump Download PDFInfo
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- CN106968933A CN106968933A CN201710221783.XA CN201710221783A CN106968933A CN 106968933 A CN106968933 A CN 106968933A CN 201710221783 A CN201710221783 A CN 201710221783A CN 106968933 A CN106968933 A CN 106968933A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/20—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by changing the driving speed
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- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The pump speed control method realized using the star-wheel variable speed energy saving system of closed-loop control water pump, is related to star-wheel variable speed energy saving system.Belong to pump speed control field.When solving that motor is run with invariable rotating speed in existing pump speed control system, water yield is fixed, it is impossible to different according to per period water consumption, the problem of carrying out water yield adjusting.The pump speed control method comprises the following steps：Step one：Star-wheel speed regulator is lubricated using lubricating oil；Step 2：Make high pressure main motor output speed constant, adjust the output speed of star-wheel speed regulator by adjusting the rotation direction and rotating speed of low pressure regulation and control motor, the output speed of water pump is controlled according to the output speed of star-wheel speed regulator, so as to realize the gearshift adjustment to water pump.Present invention is mainly used for carry out speed governing to water pump.
Description
Technical field
The present invention relates to star-wheel variable speed energy saving system.Belong to pump speed control field.
Background technology
1400s22 type water circulating pumps firm discharge is 18000m3/h, lift 25m, wears 1600kW motors, motor speed
For 372r/min, voltage 6000V.When motor is run with invariable speed, discharge of pump and pressure are also fixed；But it is every
The water consumption of period is different, and fixed water yield can not only meet the requirement of industrial water, waste of resource and the energy, it is impossible to create more
Big economic benefit.
The big or middle power apparatus mode of speed regulation generally used at present is mainly fluid coupling speed governing, electromagnetic coupled speed governing
With three kinds of modes of frequency control, but existing frequency control mode of speed regulation is relatively backward, electromagnetic coupled speed governing and coupling fluid-structure
There is volume greatly in device speed governing, install space-consuming, operational efficiency is low, service life is short, influence big, cost high high-voltage motor,
The defect that energy waste is seriously waited.
The content of the invention
The present invention is in order to which when solving that motor is run with invariable rotating speed in existing pump speed control system, water yield is solid
Fixed, it is impossible to different according to per period water consumption, the problem of carrying out water yield adjusting uses closed-loop control water the invention provides one kind
The pump speed control method that the star-wheel variable speed energy saving system of pump is realized.
The pump speed control method realized using the star-wheel variable speed energy saving system of closed-loop control water pump, described closed-loop control water
The star-wheel variable speed energy saving system of pump includes water pump, No. 1 water pump coupler, low pressure regulation and control motor, high pressure main motor, star-wheel speed governing
Device, diaphragm coupling and No. 2 water pump couplers,
The rotary output axis of described high pressure main motor are rotated and inputted by No. 2 water pump couplers and star-wheel speed regulator 1
Axle is connected, and high pressure main motor output speed is constant,
The rotary output axis of low pressure regulation and control motor are connected by No. 2 rotation input shafts of diaphragm coupling and star-wheel speed regulator,
The rotary output axis of star-wheel speed regulator are connected by the rotation input shaft of No. 1 water pump coupler and water pump；
The pump speed control method comprises the following steps：
Step one：Star-wheel speed regulator is lubricated using lubricating oil；
Step 2：Make high pressure main motor output speed constant, adjusted by adjusting the rotation direction and rotating speed of low pressure regulation and control motor
The output speed of star-wheel speed regulator is saved, the output speed of water pump is controlled according to the output speed of star-wheel speed regulator, so as to realize
To the gearshift adjustment of water pump.
The star-wheel variable speed energy saving system of described closed-loop control water pump also include radiator, oil pump, oil inlet pipe, oil return pipe,
Fuel tank and filter；
Oil pump is used to the lubricating oil in fuel tank being pumped into filter by oil inlet pipe,
The oil-out of filter is connected with the oil inlet of star-wheel speed regulator, the oil-out of star-wheel speed regulator by oil return pipe with
Fuel tank is connected,
Radiator is used to cool down the lubricating oil for flowing through oil inlet pipe.
In described step one, it is to the detailed process that star-wheel speed regulator is lubricated using lubricating oil：
First, the lubricating oil in fuel tank is pumped into filter by oil pump by oil inlet pipe, at the same by radiator to flow through into
The lubricating oil of oil pipe is cooled down；
Secondly, the impurity in lubricating oil is filtered out by filter,
Finally, after lubricating oil is lubricated to star-wheel speed regulator after cooling and removal of impurities, fuel tank is returned to by oil return pipe.
The mathematical modeling of the described star-wheel variable speed energy saving system for using closed-loop control water pump for：nWater pump=iH·nMain motor±
ik·nRegulation and controlMotor,
Wherein, nWater pumpFor the output speed of water pump, nMain motorFor the output speed of high pressure main motor, nRegulate and control motorRegulate and control electricity for low pressure
The output speed of machine, iHFor the fixed drive ratio between high pressure main motor and star-wheel speed regulator, ikAdjusted for low pressure regulation and control motor and star-wheel
Fixed drive ratio between fast device.
Described star-wheel speed regulator is made up of in parallel or in series two sets of reducing gears.
A set of reducing gear in two sets of described reducing gears is the main power being made up of one-level or two-stage planetary mechanism
Planetary gear reducing mechanism, another set of reducing gear is that the secondary power planet combined by bevel gear pair and planetary gear construction slows down
Mechanism.
Beneficial effects of the present invention：The rotation direction and rotating speed that the present invention can regulate and control motor by adjusting low pressure are adjusted to adjust star-wheel
The output speed of fast device, so that many water pumps carry out gearshift adjustment, thus it is different according to per period water consumption, to adjust going out for water pump
Water, reaches the purpose of energy-conservation.
Output is adjusted by speed governing using star-wheel speed regulator, power saving rate is generally 20%~70%, by adjusting water
Revolution speed carrys out regulating pondage, water circulating pump valve standard-sized sheet, and this greatly reduces the influence of valve resistance, can obtain significant section
Can effect.
The star-wheel variable speed energy saving system of closed-loop control water pump of the present invention can realize that (regulation and control turn powerful device low speed
Speed) start, mode of speed regulation is simple, effectively alleviates impact of the equipment starting current to power network, does not produce higher hamonic wave, no power network
Pollution, resists strong magnetic impact capacity strong.
The structure of the star-wheel variable speed energy saving system of closed-loop control water pump of the present invention has following features：
1. electromechanical integration integrates speed governing.As long as changing the rotation direction or rotating speed of low pressure regulation and control motor, star-wheel speed regulator output
The rotating speed of axle will change therewith, so as to realize the function of speed governing.
2. with it is small tune up, power point rate, motion synthesize.Driving high-tension electricity is realized by controlling small-power low pressure to regulate and control motor
Machine equipment speed governing operation, easily realizes and automatically controls, attended operation is convenient, speed governing expense is low；Regulate and control motor variation, except use
Outside the standard electromotor of one speed, it can also be adjusted using low pressure small-power pole-changing control, frequency control, electromagnetic speed-adjusting, small-sized DC
The motors such as speed.
3. bidirectional speed governing, energy-efficient.Both equipment rotating speed can have been made higher than Rated motor rotating speed, can also have been turned less than Rated motor
Speed, therefore most rational equipment rotating speed can be designed by operating mode and performance requirement, within the specific limits not by Rated motor rotating speed
Limitation, makes the power averaging that motor material Unit Weight is transmitted improve more than 1.6 times, saves material remarkable benefit again.
4. high-power, high pulling torque speed governing is realized.It is primarily adapted for use in the wind of power 300kW~6000kW high-voltage motors driving
The speed governing operation of the heavy load transmission equipment such as machine, water pump, air compressor machine and grinding machine, mine hoist, also may replace traditional deceleration
Device.
5. contrasted with like product：
The big or middle power apparatus mode of speed regulation that current popularity is used is mainly fluid coupling speed governing, electromagnetic coupled
3 kinds of modes of speed governing and frequency control, specific comparative advantages such as following table (because fluid coupling technology is old, ratio is not done in following table
Compared with).
Star-wheel speed regulator and the comparative advantages of other modes of speed regulation
Brief description of the drawings
Fig. 1 is the structural representation of the star-wheel variable speed energy saving system of closed-loop control water pump of the present invention.
Fig. 2 is Fig. 1 partial enlarged drawing.
Embodiment
Embodiment one：Present embodiment is illustrated referring to Figures 1 and 2, and present embodiment uses closed-loop control
The pump speed control method that the star-wheel variable speed energy saving system of water pump is realized, the star-wheel variable speed energy saving system of described closed-loop control water pump
Including water pump 1, No. 1 water pump coupler 2, low pressure regulation and control motor 7, high pressure main motor 9, star-wheel speed regulator 10, diaphragm coupling 12
With No. 2 water pump couplers 13,
The rotary output axis of described high pressure main motor 9 pass through No. 101 rotations of No. 2 water pump couplers 13 and star-wheel speed regulator
Input shaft is connected, and the output speed of high pressure main motor 9 is constant,
The rotary output axis of low pressure regulation and control motor 7 pass through No. 102 rotation input shafts of diaphragm coupling 12 and star-wheel speed regulator
Connection,
The rotary output axis of star-wheel speed regulator 10 are connected by No. 1 water pump coupler 2 with the rotation input shaft of water pump 1；
The pump speed control method comprises the following steps：
Step one：Star-wheel speed regulator 10 is lubricated using lubricating oil；
Step 2：Make the output speed of high pressure main motor 9 constant, by adjust low pressure regulate and control motor 7 rotation direction and rotating speed come
The output speed of star-wheel speed regulator 10 is adjusted, the output speed of water pump 1 is controlled according to the output speed of star-wheel speed regulator 10, from
And realize the gearshift adjustment to water pump.
In present embodiment, product manufacturing and installation instructions are as follows：
The star-wheel variable speed energy saving system of the closed-loop control water pump of electromechanical integration includes star-wheel speed regulator, low pressure regulation and control electricity
Machine, low-voltage power distributing cabinet, oil system composition.When star-wheel speed control device is installed, present pump motor end group plinth is remake
Install the mass-type foundation of speed regulator additional into satisfaction, make the overall common bed of channel-section steel welding, foundation for water pumps is motionless, and Motor Foundation adds
Long 1.8 metric systems are made mass-type foundation as installation speed regulator position.After units' installation debugging is finished, main motor or specified turn
Speed operation, (main motor and switch board are changed without) carries out stepless time adjustment by regulating and controlling motor to pump rotary speed.
Save example：
It is known：Circulation-water pump electric machine capacity PN=1600kW.Water circulating pump metered flow Q0=18000m3/ h, rated head
H0=25m, ηWater pump=90%.
Meet pump operating condition energy-saving analysis when water circulating pump outlet valve aperture is 70%
(1) during the operation of regulation outlet valve aperture motor (：High pressure main motor) power calculation：When outlet damper is opened
Spend for 70% when, the shaft power Pe of water circulating pump1=80%Pe, the efficiency eta of motor1=94.6%.
Motor consumes power P1=Pe1/η1=80%Pe/94.6%=84.6%Pe, Pe are shaft work under declared working condition
Rate.
(2) motor power (output) during speed governing operation is calculated：
When speed governing adjusts pump capacity, relation between shaft power, flow, rotating speed：Pe1/Pe2=(Q1/Q2)3=(n1/n2)3。
In formula：Pe1--- when inlet valve aperture is 25%, the shaft power kW of water pump 1；
Pe2--- during speed governing operation, the shaft power kW of water pump 1；
Q1--- when inlet valve aperture is 25%, the flow m of water pump 13/h；
Q2--- during speed governing operation, the flow m of water pump 13/h；
n1--- when inlet valve aperture is 25%, the rotating speed rpm of water pump 1；
n1--- during speed governing operation, the rotating speed rpm of water pump 1；
Pump shaft power Pe2=(75.8%)3Pe, motor efficiency η2=93%, the mechanical efficiency η of speed regulatorAdjust=
96%.
Motor consumes power P2=Pe2/η2/ηAdjust=(75.8%)3Pe/93%/96%=48.8%Pe.
(3) fractional energy savings is calculated：
Amount of energy saving Δ P=P1-P2=84.6%Pe-48.8%Pe=35.8%Pe.
Fractional energy savings：ΔP/P1=35.8%Pe/84.6%Pe=42.3%.
By daily work 24 hours, 360 days annual working times, often spend 0.6 yuan of calculating of electricity：(with reference to sales rate of electricity)
Annual power cost saving：35.8% × 1360 × 24 × 360 × 0.6=2,523,985 (member).
The pump speed control method realized using the star-wheel variable speed energy saving system of closed-loop control water pump, speed regulation process is simple, leads to
Overregulate the rotation direction and rotating speed of low pressure regulation and control motor 7 to adjust the output speed of star-wheel speed regulator 10, so that many water pumps are become
Velocity modulation section, thus it is different according to per period water consumption, to adjust the water yield of water pump, the purpose of energy-conservation is reached, obtains significant
Energy-saving effect.When meeting 70% water circulating pump outlet valve aperture operating mode, fractional energy savings 42.3%, 2,523,985 yuan of the Spring Festival holidays electricity charge,
Significantly, by conventional condition calculating, cost is at most i.e. recoverable less than 1 year for energy-saving effect.
Embodiment two：Present embodiment is the star to the use closed-loop control water pump described in embodiment one
The difference for the pump speed control method that wheel variable speed energy saving system is realized is, the star-wheel variable speed energy saving system of described closed-loop control water pump
System also includes radiator 3, oil pump 4, oil inlet pipe 5, oil return pipe 6, fuel tank 8 and filter 11；
Oil pump 4 is used to the lubricating oil in fuel tank 8 being pumped into filter 11 by oil inlet pipe 5,
The oil-out of filter 11 is connected with the oil inlet of star-wheel speed regulator 10, and the oil-out of star-wheel speed regulator 10 is by returning
Oil pipe 6 is connected with fuel tank 8,
Radiator 3 is used to cool down the lubricating oil for flowing through oil inlet pipe 5.
Embodiment three：Present embodiment is the star to the use closed-loop control water pump described in embodiment two
The difference for the pump speed control method that wheel variable speed energy saving system is realized is, in described step one, and star-wheel is adjusted using lubricating oil
The detailed process that fast device 10 is lubricated is：
First, the lubricating oil in fuel tank 8 is pumped into filter 11 by oil pump 4 by oil inlet pipe 5, while passing through 3 pairs of radiator
The lubricating oil for flowing through oil inlet pipe 5 is cooled down；
Secondly, the impurity in lubricating oil is filtered out by filter 11,
Finally, after lubricating oil is lubricated to star-wheel speed regulator 10 after cooling and removal of impurities, passes through oil return pipe 6 and return to fuel tank 8.
Embodiment four：Present embodiment is to the use closed-loop control described in embodiment one, two or three
The difference for the pump speed control method that the star-wheel variable speed energy saving system of water pump is realized is, the star of described use closed-loop control water pump
Wheel variable speed energy saving system mathematical modeling be：nWater pump=iH·nMain motor±ik·nRegulate and control motor,
Wherein, nWater pumpFor the output speed of water pump 1, nMain motorFor the output speed of high pressure main motor 9, nRegulate and control motorRegulate and control for low pressure
The output speed of motor 7, iHFor the fixed drive ratio between high pressure main motor 9 and star-wheel speed regulator 10, ikRegulate and control motor 7 for low pressure
With the fixed drive ratio between star-wheel speed regulator 10.
Embodiment five：Present embodiment is the star to the use closed-loop control water pump described in embodiment one
The difference for the pump speed control method that wheel variable speed energy saving system is realized is, described star-wheel speed regulator 10 by two sets of reducing gears simultaneously
Connection is in series.
In present embodiment, star-wheel speed regulator 10 is made up of in parallel or in series two sets of reducing gears, so just by two kinds
Rotary motion synthesizes multiple degrees of freedom and multi-shaft interlocked speed governing campaign.
Embodiment six：Present embodiment is the star to the use closed-loop control water pump described in embodiment five
The difference for the pump speed control method that wheel variable speed energy saving system is realized is, a set of reducing gear in two sets of described reducing gears
For the main power planet gear reduction being made up of one-level or two-stage planetary mechanism, another set of reducing gear is by bevel gear pair
The secondary power planet reducing gear combined with planetary gear construction.
In present embodiment, star-wheel speed regulator 10 can using a set of generalization and a set of standardization reducing gear it is in parallel or
It is composed in series.The main power planet gear reduction that wherein a set of reducing gear is made up of one-level or two-stage planetary mechanism,
The mechanism has the characteristics of high-precision, interior external toothing, multiple rows of roller gear, double freedom；Another set of reducing gear be by
Bevel gear pair and the secondary power planet reducing gear of planetary gear construction combination.Two sets of reducing gear tandem compounds obtain two phases
The main power transmission for mutually leading connection compares iHCompare i with secondary power transmissionK, two kinds of rotary motions are just so synthesized into multiple degrees of freedom and multiaxis
The speed governing campaign of linkage.
Claims (6)
1. the pump speed control method realized using the star-wheel variable speed energy saving system of closed-loop control water pump, described closed-loop control water pump
Star-wheel variable speed energy saving system include water pump (1), No. 1 water pump coupler (2), low pressure regulation and control motor (7), high pressure main motor (9),
Star-wheel speed regulator (10), diaphragm coupling (12) and No. 2 water pump couplers (13),
The rotary output axis of described high pressure main motor (9) are turned by No. 2 water pump couplers (13) and star-wheel speed regulator (10) 1
Driven input shaft is connected, and high pressure main motor (9) output speed is constant,
The rotary output axis of low pressure regulation and control motor (7) are rotated and inputted by diaphragm coupling (12) and star-wheel speed regulator (10) 2
Axle is connected,
The rotary output axis of star-wheel speed regulator (10) are connected by No. 1 water pump coupler (2) with the rotation input shaft of water pump (1)；
Characterized in that, the pump speed control method comprises the following steps：
Step one：Star-wheel speed regulator (10) is lubricated using lubricating oil；
Step 2：Make high pressure main motor (9) output speed constant, by adjust low pressure regulate and control motor (7) rotation direction and rotating speed come
The output speed of star-wheel speed regulator (10) is adjusted, the output of water pump (1) is controlled according to the output speed of star-wheel speed regulator (10)
Rotating speed, so as to realize the gearshift adjustment to water pump.
2. the pump speed control side that the star-wheel variable speed energy saving system of use closed-loop control water pump according to claim 1 is realized
Method, it is characterised in that the star-wheel variable speed energy saving system of described closed-loop control water pump also includes radiator (3), oil pump (4), entered
Oil pipe (5), oil return pipe (6), fuel tank (8) and filter (11)；
Oil pump (4) is used to the lubricating oil in fuel tank (8) being pumped into filter (11) by oil inlet pipe (5),
The oil-out of filter (11) is connected with the oil inlet of star-wheel speed regulator (10), and the oil-out of star-wheel speed regulator (10) passes through
Oil return pipe (6) is connected with fuel tank (8),
Radiator (3) is used to cool down the lubricating oil for flowing through oil inlet pipe (5).
3. the pump speed control side that the star-wheel variable speed energy saving system of use closed-loop control water pump according to claim 2 is realized
Method, it is characterised in that in described step one, the detailed process being lubricated using lubricating oil to star-wheel speed regulator (10) is：
First, the lubricating oil in fuel tank (8) is pumped into filter (11) by oil pump (4) by oil inlet pipe (5), while passing through radiator
(3) lubricating oil for flowing through oil inlet pipe (5) is cooled down；
Secondly, the impurity in lubricating oil is filtered out by filter (11),
Finally, after lubricating oil is lubricated to star-wheel speed regulator (10) after cooling and removal of impurities, passes through oil return pipe (6) and return to fuel tank
(8)。
4. the water pump that the star-wheel variable speed energy saving system of the use closed-loop control water pump according to claim 1,2 or 3 is realized is adjusted
Fast method, it is characterised in that the mathematical modeling of the described star-wheel variable speed energy saving system for using closed-loop control water pump for：nWater pump=
iH·nMain motor±ik·nRegulate and control motor,
Wherein, nWater pumpFor the output speed of water pump (1), nMain motorFor the output speed of high pressure main motor (9), nRegulate and control motorRegulate and control for low pressure
The output speed of motor (7), iHFor the fixed drive ratio between high pressure main motor (9) and star-wheel speed regulator (10), ikRegulate and control for low pressure
Fixed drive ratio between motor (7) and star-wheel speed regulator (10).
5. the pump speed control side that the star-wheel variable speed energy saving system of use closed-loop control water pump according to claim 1 is realized
Method, it is characterised in that described star-wheel speed regulator (10) is made up of in parallel or in series two sets of reducing gears.
6. the pump speed control side that the star-wheel variable speed energy saving system of use closed-loop control water pump according to claim 5 is realized
Method, it is characterised in that a set of reducing gear in two sets of described reducing gears is made up of one-level or two-stage planetary mechanism
Main power planet gear reduction, another set of reducing gear is the secondary power row combined by bevel gear pair and planetary gear construction
Star reducing gear.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710221783.XA CN106968933A (en) | 2017-04-06 | 2017-04-06 | The pump speed control method realized using the star-wheel variable speed energy saving system of closed-loop control water pump |
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|---|---|---|---|
| CN201710221783.XA CN106968933A (en) | 2017-04-06 | 2017-04-06 | The pump speed control method realized using the star-wheel variable speed energy saving system of closed-loop control water pump |
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Family
ID=59336253
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110061592A (en) * | 2019-05-21 | 2019-07-26 | 无锡市太湖闸站工程管理处 | A kind of low-speed big magneto |
| CN114320942A (en) * | 2021-12-31 | 2022-04-12 | 浙江东音科技有限公司 | Solar submersible pump with intelligent power regulation function for well |
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| CN114320942A (en) * | 2021-12-31 | 2022-04-12 | 浙江东音科技有限公司 | Solar submersible pump with intelligent power regulation function for well |
| CN114320942B (en) * | 2021-12-31 | 2024-03-29 | 浙江东音科技有限公司 | Immersible pump for solar well with intelligent power regulation function |
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Application publication date: 20170721 |
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